Jakarta, CNBC Indonesia – The sun, which is currently 4.6 billion years old, has 10 billion years to survive. But until it’s time to die, the big star will undergo significant changes.
The Sun’s core will shrink as the outer part expands to reach Mars. This happens about 5 billion years from now.
In this process the Earth will be swallowed up by the Sun, provided that the planet still exists. Because there are predictions of life on Earth only 1 billion years left.
One study in 2018 predicted that the Sun would become a Nebula, which is a glowing bubble of gas and dust. They believe the Nebula is the corpse of the Sun and the final phase of life at the center of the solar system.
“When a star dies, it ejects gas and dust known as a shroud into space. The shroud can reach half of the star’s mass. This will reveal the core of a star that at this point is still running, runs out of fuel, and then dies,” said one. author of the paper from the University of Manchester and astrophysicist Albert Ziljstar, quoted by Science Alert, Tuesday (12/10/2021).
Over 10,000 years ago, Ziljstar said the Sun’s hot core made the outer envelope glow. That’s when the Nebula will be visible.
When the Sun dies, life on Earth if it still exists will be the next question. The Futurism page tries to make predictions when it comes.
Futurism writes that humans on Earth will only realize the absence of the Sun 8.5 minutes later. But when they realized, there was no longer the Sun and the night would be forever and the Earth was traveling between stars at 18 miles per second.
The impact of the death of the Sun is that objects that usually reflect their rays no longer glow. Namely on the Moon and other planets in this solar system.
In addition, according to Futurism, the temperature on Earth will also drop drastically gradually. In the first week the temperature was below 0 degrees, then continued to decline -100 degrees during the first year.
Next Earth will be -240 degrees in millions of years later. But the geothermal heat will still work and the remaining humans will move there to survive.
A dead sun will also kill living things. For example, the process of photosynthesis stops and the plant will be destroyed. At that time, most of the species also survived for a short time but eventually died out.
(roy/roy)
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